Motherboard manufacturers added Intel Software Guard Extensions option into BIOS only recently. It is never present in the initial BIOS release. Thus it is not easy to tell whether a mobo supports it or not unless you actually own the board with latest BIOS installed. Are here any owners of Z170X Gaming G1, Gaming GT, Gaming 7 or UD5 TH? Can you check your BIOS and tell me, please? It should be under Peripherals tab.
